My 18mo is a happy and healthy little girl, she is tall for her age.
I feel like she doesn't stop eating though and generally when she asks for food I give it to her because I hate the thought of her being hungry and think maybe as she's growing she's just needing plenty of food.
Today she's had;
Breakfast: Porridge (eats the whole bowlful)
Snacks: Banana & Pack of raisins
Lunch: 3 falafel, babybel, a few carrots sticks, cherry tomato & 4 raspberries
Snacks: mango and another pack of raisins
She will then have dinner and milk this evening.
Having written this down I'm beginning to think maybe it's a growth spurt but it feels like she's spent all day eating!
I'd be interested to hear what your 18MO eats.